absolute age determination
| method
| absolute age determination | |
| oil | 绝对年龄测定 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 绝对年龄测定 | |||
|
absolute age determination : 2 phrases in 2 subjects |
| Chemistry | 1 |
| Earth sciences | 1 |